Man and Wife by Tony Parsons

Harry Silver is ready to try again at living "happily ever after." It won't be easy: not when he has to juggle his wife, his ex-wife, his son, his stepdaughter, his work, and his new wife's fast-growing career. Did Harry commit to marriage to Cyd too soon after his split with Gina? Can you love - really love - a child who is not your own? Can you be a good father to a child you only see on the weekends? When Harry meets a woman who makes him question all these things and more, his tangled web becomes even more knotty.